Exhibit 12.1 ------------ CHEVRON CORPORATION - TOTAL ENTERPRISE BASIS COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in Millions) Year Ended December 31, ----------------------------------------------------- 1999 1998 1997 1996 1995 --------- --------- --------- --------- --------- Net Income $2,070 $1,339 $3,256 $2,607 $ 930 Income Tax Expense 1,776 658 2,428 2,624 1,094 Distributions (Less Than) Greater Than Equity in Earnings of Less Than 50 Percent Owned Affiliates (250) (72) (70) 29 (5) Minority Interest 4 7 11 4 - Previously Capitalized Interest Charged to Earnings During Period 9 35 28 24 47 Interest and Debt Expense 548 492 405 471 557 Interest Portion of Rentals(1) 178 187 167 158 148 --------- --------- --------- --------- --------- Earnings Before Provision for Taxes And Fixed Charges $4,335 $2,646 $6,225 $5,917 $2,771 ========= ========= ========= ========= ========= Interest and Debt Expense $ 548 $ 492 $ 405 $ 471 $ 557 Interest Portion of Rentals1 178 187 167 158 148 Capitalized Interest 59 39 82 108 141 --------- --------- --------- --------- --------- Total Fixed Charges $ 785 $ 718 $ 654 $ 737 $ 846 ========= ========= ========= ========= ========= - ------------------------------------------------------------------------------------------------------------------- Ratio Of Earnings To Fixed Charges 5.52 3.68 9.52 8.03 3.28 - ------------------------------------------------------------------------------------------------------------------- <FN> (1) Calculated as one-third of rentals. </FN> E-1